Known plaintext - XOR

20 Points  0x0

For this challenge you will need to decypher a simple XORed picture.

Author

Ryscrow,  

Level  Difficulty

Validations

5599 Challengers 3%

Note  Notation

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263 Votes

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 5 Solutions

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Challenge Results Challenge Results

Pseudo Challenge Lang date
apsyo   Known plaintext - XOR 19 October 2020 at 16:35
Rezga   Clair connu - XOR 19 October 2020 at 13:17
mde   Known plaintext - XOR 18 October 2020 at 15:02
mathpseudo   Known plaintext - XOR 16 October 2020 at 20:07
MHeez   Clair connu - XOR 16 October 2020 at 19:24
statooin   Known plaintext - XOR 16 October 2020 at 17:25
skunix   Clair connu - XOR 16 October 2020 at 08:39
gR00t   Clair connu - XOR 15 October 2020 at 15:03
A$ce   Clair connu - XOR 14 October 2020 at 21:56
scort   Clair connu - XOR 14 October 2020 at 19:29

 50 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty  Difficulty Author Note  Notation Solution
pas_valide Encoding - ASCII 26% 50205 5 Xartrick 10
pas_valide Encoding - UU 21% 39415 5 g0uZ 10
pas_valide Hash - Message Digest 5 21% 39800 5 g0uZ 6
pas_valide Hash - SHA-2 11% 20311 5 koma 4
pas_valide Shift cipher 7% 12387 10 m31z0nyx 8
pas_valide Pixel Madness 6% 9769 15 Ryscrow 10
pas_valide ELF64 - PID encryption 3% 5305 15 Lu33Y 10
pas_valide File - PKZIP 4% 7319 15 g0uZ 6
pas_valide Monoalphabetic substitution - Caesar 5% 9310 15 Arod 4
pas_valide Known plaintext - XOR 3% 5599 20 Ryscrow 5
pas_valide Code - Pseudo Random Number Generator 2% 2163 20 Tosh 5
pas_valide File - Insecure storage 1 4% 5887 20 g0uZ 5
pas_valide Polyalphabetic substitution - Vigenère 4% 6236 20 Arod 3
pas_valide System - Android lock pattern 3% 4054 20 Silentd 4
pas_valide Transposition - Rail Fence 2% 3785 20 YellowS4 3
pas_valide AES - CBC - Bit-Flipping Attack 1% 657 25 Tie21 1
pas_valide AES - ECB 1% 1591 25 cez40 4
pas_valide LFSR - Known plaintext 1% 456 25 Brissouille 1
pas_valide RSA - Factorisation 2% 2628 25 HacKSpider 5
pas_valide RSA - Decipher Oracle 1% 868 25 Zweisamkeit 3
pas_valide Service - Timing attack 1% 1777 25 g0uZ, koma 4
pas_valide Monoalphabetic substitution - Polybe 2% 2203 25 koma 6
pas_valide Twisted secret 1% 73 25 nonstandardmodel 1
pas_valide Initialisation Vector 1% 1202 25 manticore, notfound404 5
pas_valide GEDEFU 1% 396 30 makhno 1
pas_valide RSA - Corrupted key 1 1% 214 30 blackndoor 2
pas_valide RSA - Continued fractions 1% 891 30 sambecks 1
pas_valide RSA - Common modulus 1% 937 30 franb 2
pas_valide Service - Hash length extension attack 1% 588 30 koma 1
pas_valide AES - 4 Rounds 1% 154 35 Cryptanalyse 0
pas_valide ECDSA - Introduction 1% 123 35 Jrmbt 1
pas_valide RSA - Padding 1% 171 35 Tosh 0
pas_valide RSA - Signature 1% 60 35 s4r 1
pas_valide AES128 - CTR 1% 461 40 Tosh 1
pas_valide Discrete logarithm problem 1% 626 40 Thanat0s, RFC4949 3
pas_valide RSA - Corrupted key 2 1% 142 40 blackndoor 0
pas_valide RSA - Corrupted key 3 1% 70 40 blackndoor 0
pas_valide RSA - Multiple recipients 1% 802 40 franb 3
pas_valide AES - Fault attack #1 1% 81 50 Cryptanalyse 1
pas_valide Enigma Machine 1% 146 50 peyman 2
pas_valide ECDHE 1% 143 60 Tosh 2
pas_valide RSA - Lee cooper 1% 61 60 blackndoor, Synacktiv 0
pas_valide Service - CBC Padding 1% 791 60 koma 1
pas_valide Polyalphabetic substitution - One Time Pad 1% 292 60 Thanat0s 0
pas_valide White-Box Cryptography 1% 105 60 Cryptanalyse 3
pas_valide AES - Weaker variant 1% 49 70 Cryptanalyse 1
pas_valide Hash - SHA-3 1% 80 75 Revenger 1
pas_valide AES - Fault attack #2 1% 60 80 Cryptanalyse 1
pas_valide AES-PMAC 1% 11 100 Cryptanalyse 0
pas_valide ECDSA - Implementation error 1% 20 100 Tosh 0